Cutter-bar.



Patented Ian. 9, |900.

l H. C. 'LOUDERMILCH.

GUTTER BAR.

(Application led June "l, 1898.)

(No Model.)

Nrrnn STATES" HENRY O. LOUDERMILOH, OF ENDERS, PENNSYLVANIA, ASSIGNOR OF ONE- I-IALF TO ISAAC A. ENDERS AND JAMES O. ENDERS, OF SAME PLACE.

y CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 640,783,vdated January 9, 1900.

Application tiled I une 7, 1898. Serial No. 682,840. (No model.) V

from the cutter-bar, sharpened, and replaced whenever it is desired or becomes necessary.

With this object in view my invention consists, essentially, of a slotted cutter-bar on which is secured a series of notched blades, the end one of which is provided with a longitudinal crimp, a locking-bar resting in the longitudinal crimp of the end blade, and a recessed cap-block having a recess and a nut secured in said recess and engaged by a bolt, whereby the parts can be locked together.

The invention further consists in certain details of construction and novelties of combination, all of which will be fully described hereinafter and specifically pointed out inthe claims.

In the drawings forming part of this specication, Figure l is a perspective view illustrating one end of a cutter-bar constructed in accordance with my invention. Fig. 2 is a vertical longitudinal section, portions being shown in elevation. Fig. 3 is a detail top plan view of the end blade, end stud, longitudinally-movable locking-bar, and the lockingbolt and nut. Fig. 4is a detail sectional view on the line 4t 4 of Fig. 2. Fig. 5 is a detail sectional view on the line 5 5 of Fig. 2. Fig. 6 is a detail perspective view of one side of a blade, and Fig. 7 is a perspective View of one of the securing bolts or studs.

In carrying out my invention I employ a cutter-bar A, which is of the length similar to the bars now in use, and at suitable intervals I provide longitudinal slots A', and near the inner end of said bar I provide a longitudinal recess A2 in its upper face, the purpose being to receive the longitudinal crimp B of the blade B, which is more specifically set forth hereinafter. The other blades O are provided with angular notches O in their opposing sides, and the angle of each notch has a curved depression O2, as most clearly shown in Fig. 6, and by reference to Fig. 5 it Will be seen that when the blades are arranged in their proper positions their side faces will abut and intermediate their rear ends and the cutting edges will be produced adiamondshaped opening having curved depressions at the longitudinally-diametrical points.

D indicates the fastening-bolt, which has a T-shaped head D' upon its lower end, said head being adapted to pass through the slot A of the cutter-bar and after being passed through the fastening-bolt is turned in order to bring the head D at right angles to the length of the slot. Upon the opposite end of the bolt I provide a head D2, which is essentially diamond-shaped, having extensions D3 adapted to tit into a curved depression C2, as Ino'st clearly shown in Fig. 5, and above the diamond-shaped portion D2 is an overlapping head or ange D4, which is adapted to overlap and secure the edges of the blade, as most clearly shown in Fig. 2, and by this means it will be understood how the blades O are secured in place upon the cutter-bar A. I also employ' a rivet l, slightly different in construction, neXt the locking-bar E in order to make a snug joint, as shown in Fig. 2.

In describing the assembling of the various parts it will only be necessary to describe how one of the blades is adjusted to the cutterbar, the same operation being repeated until the last blade has been secured. The blade nearest the outer shoe is first placed upon the cutter-bar, and a rivet, having been passed through the slot registering with the angular notch on the inner side of this blade, is moved lengthwise of the cutter-bar until its extended edges overlap the first cutter-blade, the second blade is then pushed against'the first blade and under the head of this first rivet, and the second rivet placed in position over the second blade, and so on until the last cutter-blade has been secured by the lockingbar, which in turn is firmly held in its locked position by the screw-bolt, which is held from turning by the locking-plate.

IOO

The end blade B has an opening .E2 opposite the notch C' of the adjacent blade C, and resting in the longitudinal crimp B' of the blade B is a locking-bar E, the forward end oi' which is bifurcated, as shown at E', and adapted to bear against the head of the first locking-bolt, said locking-bolt being secured in place by means of the cap-block F, said block and cutter-bar being securely connected by means of the bolts F', which pass through said 'block and cutter-bar and also through the longitudinal slots E'; produced in the locking-bar E, the purpose of said slots being to permit the bar to be moved back Whenever it is desired to slide the rst locking-bolt back in order to release the iirst blade C, and after the first blade C has been released all the other blades can be released by simply sliding back the locking-bolts to a point where the flanged heads clear the notched edges ol the blades. In order to hold the locking-bar in its locked position, and consequently securely fasten all of the blades and bolts, I employ a screw-bolt G, which Works through a nut H, securely held in recesses produced in the cutter-bar, cap-block, and end blade B, the inner end of said screwbolt bearing against the end of the lockingbar, whereby as the said bolt is screwed in- Wardly the locking bar will be forced up against the first locking-bolt, and in order to secure the screw-bolt against movement I provide a lock-plate l', which is constructed of spring metal and secured to the top of the cap-block F, the free end being bifurcated and adapted to straddle the square end oi the bolt, thereby holding the said bolt securely in position :and preventing any possible movement Whereby the parts could become loose.

Instead of employing the nut H, which is located in the recesses of the cutter-bar and. cap-block, one end of the cutter-bar can be turned op and threadedi and it Will also be understood that there are certain other changes which can be made in the details of construction Without departing from the broad principles of my invention.

The operation of the various parts and their functions having been fully described in connection with the description ol' their construe` tion, a further description at this point is not deemed necessary, as it is believed that from the foregoing description any one skilled in the art to which my invention relates Will thoroughly comprehend all the advantages and also the operation of the various parts, and it will be seen that I have provided a cutter-bar capable of carrying out all of the objects previously recited.

Having thus fully described my invention, what l claim as new, and desire to secure by Letters Patent of thel United States, is-

l. The combination with the slotted cutterbar, of the headed bolts, the notched blades, the end blade having a longitudinal crimp or depression,the locking-bar,the cap-block having a recess, the nut and screw-bolt, substana tially as shown and described.

2. The combination with the slotted cutterbar having a longitudinal depression or recess, the headed bolts and notched blades, the end blade having a central longitudinal crimp or depression, the locking-bar, the nut and screw-bolt, the capblocl and securing-bolts, and the spring locking-plate secured to the cap-block and adapted to straddle the screwbolt, substantially as shown and described.

HENRY C. LOUDERMILGH.

Witnesses:

SAMUEL BEARING, H. W. KILLINGER. 

